[Xen-devel] [PATCH RFC 31/59] Make a binary that can run reports on a system without libxl

[Ronald Rojas <ronladred@xxxxxxxxx>]

From: George Dunlap <george.dunlap@xxxxxxxxxx>

To simplify report-generation and iteration, make a binary that
doesn't link against libxl.  Create a "dummy" Xen library that just
returns errors and warnings.

A better way to do this is probably to do some dlopen hackery (so we
can use the same binary), but that's for another day.

Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxx>
---
 Makefile           |  6 +++++-
 xenworker_dummy.go | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+), 1 deletion(-)
 create mode 100644 xenworker_dummy.go

diff --git a/Makefile b/Makefile
index c1b9ee4..6dee499 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-BIN = schedbench
+BIN = schedbench schedbench-report
 BINALL = $(BIN)
 
 .PHONY: all
@@ -16,6 +16,10 @@ CGO_LDFLAGS = -L$(XENLIB_PATH) 
-Wl,-rpath-link=$(XENLIB_PATH) $(CGO_LIBS)
 schedbench: main.go processworker.go xenworker.go benchmark.go run.go libxl.go 
htmlreport.go
        CGO_LDFLAGS="$(CGO_LDFLAGS)" CGO_CFLAGS="$(CGO_CFLAGS)" go build -o $@ 
$^
 
+# FIXME: Do with dlopen instead
+schedbench-report: main.go processworker.go xenworker_dummy.go benchmark.go 
run.go htmlreport.go
+       go build -o $@ $^
+
 .PHONY: clean
 clean:
        rm -f $(BINALL)
diff --git a/xenworker_dummy.go b/xenworker_dummy.go
new file mode 100644
index 0000000..02e90ce
--- /dev/null
+++ b/xenworker_dummy.go
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2016 George W. Dunlap, Citrix Systems UK Ltd
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License only.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+package main
+
+import (
+       "fmt"
+       "io"
+)
+
+type XenWorker struct {
+}
+
+func (w *XenWorker) SetId(i WorkerId) {
+}
+
+func (w *XenWorker) Init(p WorkerParams, g WorkerConfig) (err error) {
+       err = fmt.Errorf("Xen functionality not implemented");
+       return
+}
+
+// FIXME: Return an error
+func (w *XenWorker) Shutdown() {
+       
+       return
+}
+
+func (w *XenWorker) DumpLog(f io.Writer) (err error) {
+       err = fmt.Errorf("Xen functionality not implemented");
+       return
+}
+
+
+
+// FIXME: Return an error
+func (w *XenWorker) Process(report chan WorkerReport, done chan WorkerId) {
+       return;
+}
+
-- 
2.7.4


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